The Ventis MX4 multi-gas detector is the perfect instrument for use in confined spaces. Its optional, integral pump is powerful, yet lightweight, and is capable of drawing samples from up to 100 feet. Confined space kits are also available to meet the needs of multiple confined space applications. Learn more atwww.indsci.com/ventis. Industrial Scientific, www.indsci.com/ventis, (800) DETECTS. Circle 266